1220423232300 has 288 divisors, whose sum is σ = 4031584462080. Its totient is φ = 283102617600.

The previous prime is 1220423232289. The next prime is 1220423232311. The reversal of 1220423232300 is 32323240221.

It is an interprime number because it is at equal distance from previous prime (1220423232289) and next prime (1220423232311).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3819307 + ... + 4126493.

It is an arithmetic number, because the mean of its divisors is an integer number (13998557160).

Almost surely, 2^{1220423232300} is an apocalyptic number.

1220423232300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220423232300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015792231040).

1220423232300 is an abundant number, since it is smaller than the sum of its proper divisors (2811161229780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220423232300 is a wasteful number, since it uses less digits than its factorization.

1220423232300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307281 (or 307274 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 1220423232300 its reverse (32323240221), we get a palindrome (1252746472521).

The spelling of 1220423232300 in words is "one trillion, two hundred twenty billion, four hundred twenty-three million, two hundred thirty-two thousand, three hundred".